122100101010100 has 36 divisors (see below), whose sum is σ = 265988181190284. Its totient is φ = 48650001326080.

The previous prime is 122100101010077. The next prime is 122100101010131. The reversal of 122100101010100 is 1010101001221.

It can be written as a sum of positive squares in 6 ways, for example, as 31765219984 + 122068335790116 = 178228^2 + 11048454^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2375462647 + ... + 2375514046.

It is an arithmetic number, because the mean of its divisors is an integer number (7388560588619).

Almost surely, 2^{122100101010100} is an apocalyptic number.

122100101010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100101010100 is an abundant number, since it is smaller than the sum of its proper divisors (143888080180184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122100101010100 is a wasteful number, since it uses less digits than its factorization.

122100101010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4750976964 (or 4750976957 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 122100101010100 its reverse (1010101001221), we get a palindrome (123110202011321).

The spelling of 122100101010100 in words is "one hundred twenty-two trillion, one hundred billion, one hundred one million, ten thousand, one hundred".